Track-cleaner for sawmill-carriages.



F. M. vZORN.

rl gaj.

FREDRICK M. zoniv, or" LITTLE ROGI ARKANSAS,

TRACK-CLEANER FOB SAWL'IILIi-CARRIAGES.

Specification of Letters Patent. Patented Auggfi, 1918.

. Application med August 4, 1917. Serial No. 184,498.

To all whom it may concern: I

Be it known that I, FREDRIOK citizen of the United States, residingat Lite tle Rock, in the county of Pulaskiand State of Arkansas, havev invented certain new and useful Improvements in Track-Cleaners for Sawmill-Carriages, of which the following is a specification.

This invention relatesto improvements in I that a great amount ofsawdust and the like accumulates on the rails and prevents smooth running of the carriage.

Therefore the principal object of this invention is to provide the log carriage with a cleaner which will effectually remove the sawdust from the rails and thereby permit the carriage to run smoothly.

Another object of the invention is to provide the carriage Wheels, with cleaners hav- 7 ing the axes of their driving Wheels in the same horizontal plane as the axes of the carriage wheels, so that the cleaners will be moved by a direct push and will not have a tendency to rock and Wedge 011 the track.

This invention will also prevent undue wear on the track and the carriage wheels as it will eliminate friction between the track and the cleaner.

Still another object of this invention resides in the provision of an improved track lubrication device, which will supply oil to the rails to assist in preventing friction between the scraper and rails.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that tion.

M. ZORN, a

The invention is illustrated in the accompanying drawings; 7

Figure 1 is an elevation of the carriage wheel with a cleaner applied thereto. 1

Fig. 2 is a plan looking down'on Fig. 1.

Fig. 3 is an end elevation of Fig. 1.x Fig. 4: is a detail perspective showing the two halves of. one of the scraper blocks.

In the drawings: i

A represents. one of the carriage wheels journaled on a shaft B and adapted to run onthe rail C. Each of the wheelswill'be furnished with a cleanerbut as their construction are similar, it will be only necessary to describe one of them. 1

The cleaner comprises two sidesor' plates 1 and 2 which are sufliciently long to extend "beyondthe length of .the; diameter of the wheel and have their lower edges fiat and upper edges cut away to form a clearance for the hub of the wheels. At the lower ends of the plates'are scraper blocks 4 and 5 which rest on the rail and have their outer ends of plow shape. Each of the scraper blocks 4 and 5 is composed oftwo halves 3 and 3 and 6 and 6 respectively, each half having shoulders formed on its outer faces :on which the plates 1 and2 rest.

The scraper blocks 4: and 5 and the plates 1 and 2 are held together in one structure by means of the bolts 7, four of the bolts passing through each block and the plates on the outside thereof.

At the upper ends of the plates 1 and 2 there are provided bearing bosses 10 and 11, the centers of which lie on the same horizontal plane as the axis of the wheel and the bosses are provided with apertures to receive the pintles 12 and 13 onwhich are journaled, between the plates, the rollers 8 and 9 respectively, the pintles being held in place by means of cotter pins letand 15. The inner faces of the separatehalves of the scraperv blocks 4L and 5 are recessed from the top to within a convenient distance from the bottom to form pockets or reservoirs 16 and 17. These pockets are to be filled with porous material such as waste which is saturated with oil and the holes 18 and 19 are provided in the lower end of the pockets to allow the oil to feed downwardly to the rails.

As the carriage moves along the track TED 'STA es PATENT OFFICE Y rails the scraper blocks a and 5 will remove sawdust or the like therefrom, and the rails will be lubricated from the oil contained in the reservoirs 16 and 17. This lubrication of the rails prevents friction between the track and scraper blocks, thus eliminating wear which is one of the most objectionable features in the devices heretofore used.

By mounting the axes of the friction rollers 8 and 9 in the same horizontal plane as the axes of the carriage wheels, the wheels will drive the track cleaner by a direct push, while if the axes of the rollers were below the axes of the carriage wheels, the wheels would have a tendency to force the scraper blocks toward the rails and thereby cause friction both on the carriage wheels and the track. It would also make the scraper act as a wedge between the carriage wheels and track, thereby causing the carriage to run roughly and also cause undue wear on both the track and carriage wheels.

Having thus described my invention, what I claim as new is;

1. The combination with a sawmill-carriage wheel and the supporting rail thereof, of a framecarrying scrapers adjacent said Uopiea of this patent may be obtained for of a frame carrying scrapers for cleaning said rail, and friction rollers mounted in said frame and driven by said wheel, the axes of the rollers being in the same horizontal plane as the axis of the wheel.

3. The combination with a sawmill-carriage wheel and the supporting rail thereof, of a frame inclosing the lower portion of said wheel, and carrying two scrapers adjacent said rail and at opposite ends of the wheel, and rollers journaled in said frame and in contact with the periphery of the wheel, the axes of said rollers and said wheel being on the same horizontal plane.

In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.

FRED. M. ZORN.

Witnesses HUGH MAOGIBBoN,

BYNUM THOYMARTIN.

five cents each, by addressing the Commissioner of Eatents, Washington, D. G. 

